LM4808M Datasheet

IC型号：
LM4808M
PDF描述：
National Semiconductor [Dual 105 mW Headphone Amplifier]
文件大小：
677.40KB
芯片厂家：
NSC

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LM4808 Dual 105 mW Headphone Amplifier

February 2000

LM4808

Dual 105 mW Headphone Amplifier

General Description

The LM4808 is a dual audio power amplifier capable of deliv-

ering 105 mW per channel of continuous average power into

a 16鈩?load with 0.1% (THD+N) from a 5V power supply.

Boomer audio power amplifiers were designed specifically to

provide high quality output power with a minimal amount of

external components using surface mount packaging. Since

the LM4808 does not require bootstrap capacitors or snub-

ber networks, it is optimally suited for low-power portable

systems.

The unity-gain stable LM4808 can be configured by external

gain-setting resistors.

Key Specifications

THD+N at 1 kHz at 105 mW

continuous average output

power into 16鈩?/div>

THD+N at 1 kHz at 70 mW

continuous average output

power into 32鈩?/div>

Output power at 0.1% THD+N

at 1 kHz into 32鈩?/div>

0.1% (max)

0.1% (typ)

70 mW (typ)

Features

SOP and MSOP surface mount packaging

Switch on/off click suppression

Excellent power supply ripple rejection

Unity-gain stable

Minimum external components

Applications

Headphone Amplifier

Personal Computers

Microphone Preamplifier

Typical Application

Connection Diagram

SOP & MSOP Package

DS101276-2

Top View

Order Number LM4808M, LM4808MM

See NS Package Number M08A, MUA08A

DS101276-1

*Refer to the

Application Information

Section for information concerning

proper selection of the input and output coupling capacitors.

FIGURE 1. Typical Audio Amplifier Application Circuit

Boomer

庐

is a registered trademark of National Semiconductor Corporation.

漏 2000 National Semiconductor Corporation

DS101276

www.national.com

典型单电源电压
3 V, 5 V
典型增益带宽积
5.5MHz
安装类型
表面贴装
宽度
3.9mm
封装类型
SOIC N
尺寸
4.9 x 3.9 x 1.45mm
应用
耳机
引脚数目
8
放大器类型
AB 类
最低工作温度
-40 °C
最高工作温度
+85 °C
电源类型
单
输入信号类型
单端
输出信号类型
单端
输出类型
2声道立体声
长度
4.9mm
高度
1.45mm

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